Lotus F18-94GT Guia De Instalacion página 35

In the event of forced discharge
The gas supply the the appliance, must be directly interlocked to the system and must cut off automatically in the event
that its capacity goes below the values prescribed by item 4.3 of the UNI-CIG norm 8723.
The release of gas to the appliance must be possible only manually.
NATURAL DISCHARGE Fig.1
1) Extractor hood
GB IE
35
FORCED DISCHARGE Fig.2
1) Extractor hood
2) Interlocking